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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009072515679 1,869 digits created 2026-08-11

Value

664042111524315454910079734235510713998401941824618248309422515528386425253719456735341348820287382625148814974180943450411767479371561364554533238429496220535445635482529345861223774328044860417884471477426222938214441244066337242817144553939033870165158276539307821829597124052969211206683958689971506677316726548398088395621885062778357452558338439423475837288861384606374620078247853458816175840779937865974861981707644494464935750006477783922432237840847732097175750214105623779898070526307018557120174528496826754526374531650176642419554811836815094261118236770134182662543705237072105741431455959140900966259761847834377719478526963030174204750372502378144393389293269120546283234105246513658809749043724832980607104911045491478924839619306459438984596965061504441877566195477960444310930795739913327983816933645067228573584334867605715550959847575401656591525392840320443152938241847838748551994678741762142847102889602693117030759732590540043154935380334120421160754703664283453681054804232086734163388238466917035089041568405105119143126360166088841692794078480159375938521823270082398823648304404028143925535792341174604452347131511867574129950096700045371898905770548319219443962711499116668116373784499717299596461420193153299647457172896139383783003359997135123154307282910338655535170450392941214216408565666115420367217454542878095735206086416138719171680078391223984326524731288050622635243332645552088628058408482487612841679662738667760134569958293383649376370080752369740293649268715537169222296001446970684793357266673661900949777605131040544112744394867166494301193287325453711103507842570246881373247838097514314861178126979600842501484391918404205475462602308124263961173968096704363782006121816942430081037719978513228700758778539436713261856769870290723369445367695138974634118430843412847792986237632241530915387614371494157277985133791652843
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 2,646-digit prime (195 intermediate primes).

Certified number2,646-digit prime
Certificatedownload
Certificate chainshow step 63 of 195

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009072515679 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009072515679},"decimal":true,"detail":2}}'